I have a router for which an interface is configured to send Netflow Information to one of our Orion servers. According to the Summary, the information is being received and is up to date. When I go to the NTA screen for the router, the information is there, but when I select a particular interface the screen is blank. It is not that the boxes are ther and they say "no data", the boxes do not appear. I have configured other interfaces on this same router in the same way and they are fine. Can anyone point me in a direction to resolving this?